中国科学院数学与系统科学研究院期刊网
AMS
Full Friendly Index Sets of Cartesian Products of Two Cycles
Wai Chee SHIU, Man Ho LING
Acta Mathematica Sinica . 2010, (7): 1233 -1244 .  DOI: 10.1007/s10114-010-8517-5